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Lepidoptera: Totricidae: Chlidanotinae

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Lepidoptera: Totricidae: Chlidanotinae VOLUME 60, NUMBER 3 143 Journal of the Lepidopterists’ Society 60(3), 2006, 143–148 A NEW SPECIES OF AURATONOTA (LEPIDOPTERA: TORTRICIDAE: CHLIDANOTINAE) FORMERLY CONFUSED WITH A. HYDROGRAMMA (MEYRICK) JOHN W. B ROWN Systematic Entomology Laboratory, P.S.I., Agricultural Research Service, U.S. Department of Agriculture National Museum of Natural History, P.O. Box 37012, Washington, DC 20013-7012 Email: [email protected] ABSTRACT. Auratonota pharata, new species, is described and illustrated from Costa Rica, Panama, Venezuela, and French Guiana. The species is most similar to A. hydrogramma (Meyrick), with which it formerly was confused. It can be distinguished superficially from the latter by the absence of the narrow pale curved band beyond the distal end of the discal cell of the forewing. The male genitalia of the new species differ by a slightly expanded, dorsally convex, and ventrally flattened distal portion of the uncus. The female genitalia possess numerous short curved bands of 5–6 microtrichia around a larger single seta set in a shallow pit on the surface of the middle of the papillae anales compared with the more semicircular bands of microtrichia nearly surrounding the seta in A. hydrogramma. A survey of wing coupling in numerous gen- era of Chlidanotini and Hilarographini revealed that the female frenulum consists of two bristles usually separated throughout their length in all representatives examined in these two tribes; three bristles are present in females of most other Tortricidae. This character state represents an additional putative synapomorphy uniting those two tribes. RESUMEN. Auratonota pharata, especie nueva, es descrita e ilustrada de Costa Rica, Panama, Venezuela y Guyana Francesa. Este especie es mas similar a A. hydrogramma (Meyrick), con la cual ha sido con tundida. Puede ser identificada de una manera superficial de esta última por la ausencia de una banda curva fina clara detras de la portedistal de la celda discal de las alas anteriores. La genitalia del macho de la nueva especie puede ser distinguida por la presencia en la partediscal del uncus de una area ligeramente expandida, convexa dorsalmente y plana ven- tralmente. La genitalia de la hembra puede ser distinguida por la presencia de numerosas bandas curvas cortas de 5–6 espinas pequenas arriba de una sola seta en media superficie de los papillae anales en comparación con bandas más semicirculares de espinas pequeñas casi rodeando la seta en A. hydrogramma. Additional key words: Systematics, genitalia, morphology, Costa Rica, Central America, Venezuela, French Guiana, inventory, Chlidan- otini, frenulum Auratonota Razowski is the largest and most diverse were captured using a Microptics digital camera system genus in Chlidanotini (Tortricidae: Chlidanotinae) with and enhanced using Adobe Photoshop and Illustrator 30 described species (Razowski & Becker 2000, Brown software. Terminology for genital structures follows 2005) and numerous undescribed species present in Horak (1984). The following institutional abbreviations collections. The genus is restricted to the New World are used for the deposition of specimens examined: tropics, ranging from Mexico and the Caribbean (Cuba, AMNH = American Museum of Natural History, New Dominica) south through Brazil. York, New York, U.S.A.; BMNH = The Natural History A previously undescribed species of Auratonota has Museum, London, United Kingdom; INBio = Instituto been concealed in entomological collections for many Nacional de Biodiversidad, Santo Domingo de Heredia, years under the name A. hydrogramma (Meyrick). The Costa Rica; UCB = Essig Museum of Entomology, similarity of the new species to A. hydrogramma in size, University of California, Berkeley, USA; and USNM = forewing pattern, and genitalia, along with their National Museum of Natural History, Washington, geographic sympatry, have combined to inhibit their D.C., U.S.A. recognition. The two species can be separated by a subtle feature of the forewing pattern, but recently Auratonota pharata Brown, new species discovered features of the male and female genitalia (Figs. 2, 4, 5) provide convincing evidence that they are indeed Diagnosis. Among described species of Auratonota, distinct and diagnosable. The purpose of this paper is to A. pharata is most similar to A. hydrogramma in name, describe, and illustrate the new species. This forewing pattern, size, and genitalia. However, the latter work was stimulated, in part, by the desire to associate is superficially distinguishable from all described scientific names with morpho-species collected during congeners, including A. pharata, by the presence of a the NSF-funded ALAS (Arthropods of La Selva, Costa slender, pale, arched fascia in the subterminal region of Rica) project in order to more easily discuss differences the forewing that roughly parallels the apical half of the and similarities among the tortricid faunas of transect termen, intersecting the costa subapically (Fig. 1); the sites (at different elevations) sampled over the course of fascia is lacking in A. pharata (Fig. 2). The male the project (1993–2005). genitalia of A. pharata can be distinguished from those Dissection methodology followed that presented in of A. hydrogramma by the shape of the distal one- Brown and Powell (1991). Images of adults and genitalia fourth of the uncus: attenuate and apically pointed in A. 144144 JOURNAL OF THE LEPIDOPTERISTS’ SOCIETY hydrogramma (Fig. 3); slightly broadened, convex with narrow row of 5–6 long setae on each side; ductus bursae broadest at ostium, narrowed at about 0.2 distance from ostium to dorsally, and flattened ventrally in A. pharata (Fig. 4). corpus bursae, then nearly uniform in width to junction with corpus The female genitalia are extremely similar in both but bursae; corpus bursae, large, pear-shaped sac, junction with ductus can be distinguished by a subtle feature of the papillae bursae slightly anterior of posteriormost end, signum a patch of 30–35 slender, slightly curved spines originating from sclerotized plate near anales. In A. pharata microtrichia on the internal, middle of corpus; ductus seminalis from posteriormost end of corpus middle portion of the papillae anales are arranged in bursae near junction of corpus bursae and ductus bursae; a frail short, slightly curved bands of 5–6 immediately dorso- accessory bursae from a long, slender ductus originating just anterad of signum. posterad of a small, pale-colored pit from which arises a Holotype. Male: Costa Rica, Estacion Biologica La Selva, Puerto single larger seta (Fig. 5). In A. hydrogramma Viejo de Sarapiqui, 50–150 m, 10º26'N, 84º01W, 7 Feb 2002, Wagner, microtrichia are arranged in circular or semicircular Rota & Kawahara (INBio). Paratypes (24m, 3f). BRITISH GUIANA: Potaro River, bands of 8–9 nearly surrounding a more rounded pit Anundubaru, 2000', Jan 1928 (1m) (AMNH). COSTA RICA: Heredia (Fig. 6). Auratonota pharata also is similar superficially Province: Estacion Biologica La Selva, 10º26'N, 84º01'W, 50–150 m, to A. aporema (Dognin), described from Colombia, but Jan 1998 (1f), INBio-OET, J. Powell (UCB), 8–25 Mar 1999 (1m), 22–31 Mar 2001 (1f), Wagner & Rota, 7 Feb 2002 (1m), Wagner, Rota has a considerably smaller forewing length (mean 11.9 & Kawahara (INBio); Ciebo, 11 km ESE La Virgen, 250–350 m, mm for pharata vs. 15.9 for aporema) and lacks the 10º21'N, 84º01'W, 18 Mar 2004 (1m) (INBio); 10 km SE La Virgen, yellow-gold scaling of the forewing pattern elements of 450–550 m, 10 20N, 84 05W, 17 Mar 2003 (2m), 19 Mar 2003 (1m), 22 Mar 2003 (1m), INBio-OET-ALAS transect (INBio). Limón Province: A. aporema; the latter feature is more characteristic of Cerro Tortuguero, P.N. Tortuguero, 0–120 m, Oct 1989 (1m), J. Solano members of Pseudocomotis Brown (Chlidanotini), with (INBio), Jul 1991 (1m), J. Solano (INBio), Jul 1993 (1m), R. Delgado which A. aporema is more similar superficially. (INBio); Sector Cerro Cocori, Finca de E. Rojas, 150 m, Aug 1991 Description. Head: Vertex rough scaled, mostly pale cream with a (2m), E. Rojas (INBio). Unknown Province: Carchi [possibly Sarchi, few pale cream-brown scales; frons smooth scaled, pale cream white; Alajuela Province], [no date] (1m), Wm. Schaus (USNM). FRENCH labial paplus relatively slender, short, length (all segments combined) GUIANA: St. Jean, Maroni, [no date] (2m), Wm. Schaus (USNM); Rio ca. 1.2 times horizontal diameter of compound eye, brown externally, Maroni, [no date] (1m), Le M[oult] (USNM). PANAMA: Canal Zone, pale cream on inner surface; antenna thickened, with setae extremely Barro Colorado Island, 17 Sep 1941 (1f), J. Zetek (USNM). short, inconspicuous (typical of Chlidanotini). Thorax: Dorsum VENEZUELA: Aragua: Rancho Grande, 1100 m, 16–23 Oct 1966 clothed in reddish-brown scales, anterior and posterior regions with (3m), 24–31 Oct 1966 (1m), 1–5 Nov 1966 (1m), S. S. & W. D. considerable scattered white and pale brown scales; tegula pale Duckworth (USNM), 15–21 Jun 1967 (1m), 22–31 Aug 1967 (1m), R. brown, with variably expanded patch of long scales posteriorly, W. Poole (USNM). frequently expressed as an erect scale patch in both sexes. Legs Distribution and Biology. Auratonota pharata is unmodified; no hairpencil or secondary scale patches in male. Forewing length 11.5–12.9 mm (×-— = 11.9; n = 10) in male, 12.2–14.1 recorded from Costa Rica, Panama, Venezuela, British mm (—× = 13.1; n = 2) in female; costa nearly straight, apex obtuse, Guiana, and French Guiana. Although it appears to be a termen slightly convex, rather oblique; ground color ferruginous, with species of the lowlands (i.e., below 500 m), it has been light silvery-gray reticulations formed by irregular interrupted streaks on veins and a series of indistinct transverse fascia crossing them, recorded on several occasions at Rancho Grande, scattered with iridescent green scales in interspaces (the green scales Venezuela, at 1100 m and once in British Guiana from inconspicuous on flight worn specimens); basal portion from near base 660 m. During a multi-year survey in Costa Rica along to ca.
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